CN216861714U

CN216861714U - Pedal vehicle

Info

Publication number: CN216861714U
Application number: CN202220134212.9U
Authority: CN
Inventors: 于成伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-18
Filing date: 2022-01-18
Publication date: 2022-07-01
Anticipated expiration: 2032-01-18

Abstract

A pedal rod vehicle comprises a rear wheel, a front wheel, an axle, a crankshaft, a crank rocker mechanism, a pedal rod and a speed change gear mechanism, wherein the rear wheel is installed at the rear end of the axle through a rear wheel shaft, the front wheel is installed at the front end of the axle through a front fork, a handle is installed on the front fork, the pedal rod is connected with the crankshaft through the crank rocker mechanism, the crank rocker mechanism converts the up-and-down motion of the pedal rod into the rotary motion of the crankshaft, the crankshaft is connected with an input shaft of the speed change gear mechanism in a linkage mode, the rear wheel shaft is connected with an output shaft of the speed change gear mechanism in a linkage mode, and a gear shifter for controlling the speed change gear mechanism to shift gears is installed on the handle. The bicycle is more labor-saving and comfortable to ride and has good riding interest.

Description

Pedal vehicle

Technical Field

The utility model relates to a pedal lever vehicle.

Background

The bicycle is the most common sport tool for riding instead of walk, the bicycle is ridden by two feet to circumferentially tread pedals, and wheels are driven to rotate by gears and chains. Therefore, some people also design a stepping bicycle, but the transmission mode still refers to the traditional bicycle and has the defects of the traditional bicycle.

SUMMERY OF THE UTILITY MODEL

The utility model solves the defects of the prior art and provides the pedal lever vehicle which is more labor-saving and comfortable to ride and increases the riding interest.

In order to achieve the purpose, the utility model firstly provides a pedal lever vehicle which comprises a rear wheel, a front wheel, an axle, a crank shaft, a crank rocker mechanism, a pedal lever and a speed change gear mechanism, wherein the rear wheel is installed at the rear end of the axle through a rear wheel shaft, the front wheel is installed at the front end of the axle through a front fork, a handle is installed on the front fork, the pedal lever is connected with the crank shaft through the crank rocker mechanism, the crank rocker mechanism converts the up-and-down motion of the pedal lever into the rotating motion of the crank shaft, the crank shaft is connected with an input shaft of the speed change gear mechanism in a linkage mode, the rear wheel shaft is connected with an output shaft of the speed change gear mechanism in a linkage mode, and a gear changer for controlling the speed change gear mechanism to shift gears is installed on the handle.

In this embodiment, the axle is further provided with a seat, and the pedal lever is disposed above the axle and between the front fork and the seat.

In this embodiment, the input shaft of the change gear mechanism is provided with a dog clutch, the dog clutch includes a first-gear half clutch, a second-gear half clutch and a bidirectional half clutch, the bidirectional half clutch is connected with the input shaft through a spline or a guide key, so that the bidirectional half clutch can axially move on the input shaft,

the transmission gear mechanism comprises a first gear driving gear, a second gear driving gear, a first gear driven gear and a second gear driven gear, wherein the first gear driving gear is fixed on the first gear half clutch, the second gear driving gear is fixed on the second gear half clutch, the first gear driven gear and the second gear driven gear are fixed on an output shaft of the transmission gear mechanism, and the transmission ratio of the first gear driving gear and the first gear driven gear is smaller than that of the second gear driving gear and the second gear driven gear.

In this embodiment, be connected with shifting through shifting the bearing on the two-way half clutch, shift the middle part at square horizontal pole at the top of keeping out, be equipped with on the relative both sides of speed change gear mechanism's frame with square horizontal pole size assorted square hole, the cartridge is slided respectively at the both ends of square horizontal pole in the square hole of frame, the both ends cover of square horizontal pole is equipped with return spring, return spring's one end is fixed on square horizontal pole, and the other end is fixed in the frame, return spring makes square horizontal pole fix a position the driving lever under the state that does not receive external force for two-way half clutch is in the position of neutral gear, the both ends of square horizontal pole are connected with left wire rope and right wire rope's one end respectively, left side wire rope and right wire rope's the other end is connected with the gear changer.

In the embodiment, the gear shifter comprises a knob, a left fixed column, a right fixed column, a wheel-shaped clamping part, a pressure spring, a knob plectrum and a knob cap, wherein the knob comprises a circular bottom plate and a rotary rod vertically arranged at the center of the circular bottom plate, the left fixed column and the right fixed column are respectively arranged on two opposite sides of the center on the circular bottom plate of the knob, the left fixed column and the right fixed column are radially arranged, the left steel wire rope and the right steel wire rope are respectively and fixedly connected with the left fixed column and the right fixed column, a sleeve matched with the outer diameter of the rotary rod of the knob is arranged in the middle of the wheel-shaped clamping part, three grooves matched with the left fixed column and the right fixed column in size are respectively arranged at the bottom of the wheel-shaped clamping part and at positions close to the left fixed column and the right fixed column to serve as a middle clamping position, a first-blocking clamping position and a second-blocking position, and the middle clamping position is arranged between the first-blocking position and the second-blocking position, the wheel-shaped clamping part is sleeved on the knob, a rotary rod of the knob is inserted in the sleeve, the end part of the rotary rod extends out of the top of the sleeve, a pressure spring is sleeved on the sleeve, one end of the pressure spring is fixed with the rotary rod, the other end of the pressure spring is fixed with the sleeve, and the pressure spring enables the left fixing column and the right fixing column on the circular bottom plate to be clamped and arranged in a middle clamping position, a first-gear clamping position or a second-gear clamping position; and a knob shifting piece which is radially arranged is also fixed on the end part of the rotary rod extending out of the sleeve.

In this embodiment, the crank-rocker mechanism includes a crank, a connecting rod and a rocker, one end of the crank is connected with the crank shaft, the other end of the crank is connected with the middle of the rocker through the connecting rod, one end of the rocker is hinged to the frame, the other end of the rocker is fixed with a pedal rod, an auxiliary rod is further fixed on the pedal rod at a position symmetrical to the rocker, the auxiliary rod is parallel to the rocker, and the other end of the auxiliary rod is hinged to the frame corresponding to the hinged point of the rocker.

In this embodiment, the rear wheel or/and the front wheel is further provided with a brake.

By adopting the structure, the rider can transfer the force of the rider on the pedal rod to the rear wheel by the crank rocker mechanism and the speed change gear to realize the forward movement of the vehicle by stepping on the pedal rod, so that the movement of the device can be realized by only stepping up and down; the device is also provided with a speed change gear mechanism, and the speed change gear mechanism is controlled by a gear shifting device on the handlebar, so that the device is convenient to adjust according to different road conditions, and the labor-saving effect is achieved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the transmission of the present invention;

FIG. 3 is a schematic view of the present invention;

fig. 4 is an exploded view of fig. 3.

In the figure, 1, crank; 2. a rocker; 3. a frame; 4. a connecting rod; 5. a foot bar; 6. a first gear driving gear; 7. a crank shaft; 8. a first-gear driven gear; 9. a rear wheel axle; 10. a rear wheel; 11. a bi-directional half clutch; 12. a first-gear half clutch; 13. a second-gear half clutch; 14. a deflector rod; 15. a shift bearing; 16. A second gear driving gear; 17. an axle; 18. a second driven gear; 19. an auxiliary lever; 20. a rocker shaft; 21. a left wire rope; 22. a right wire rope; 23. a square cross bar; 24. a return spring; 25. a knob; 26. a left fixed column; 27. a right fixed column; 28. middle clamping position; 29. a blocking position; 30. two-stage blocking is realized; 31. a pressure spring; 32. a fastening ring; 33. a wheel-shaped clamping piece; 34. a knob plectrum; 35. a knob cap; 40. a seat; 41. a handle; 42. a gear shifting device; 43. a front wheel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 1 to 4, the present invention provides a pedal lever vehicle, which comprises a rear wheel, a front wheel 43, an axle 17, a crank shaft 7, a crank-rocker mechanism, a pedal lever 5 and a speed change gear mechanism, wherein the rear wheel is mounted at the rear end of the axle 17 through a rear wheel shaft 9, the front wheel 43 is mounted at the front end of the axle 17 through a front fork, a handle 41 is mounted on the front fork, the pedal lever 5 is connected with the crank shaft 7 through the crank-rocker mechanism, the crank-rocker mechanism converts the up-and-down movement of the pedal lever 5 into the rotation movement of the crank shaft 7, the crank shaft 7 is linked with an input shaft of the speed change gear mechanism, the rear wheel shaft 9 is linked with an output shaft of the speed change gear mechanism, a gear shifter 42 for controlling the speed change gear mechanism to shift gears is mounted on the handle 41, a seat 40 is further mounted on the axle 17, the pedal lever 5 is arranged above the axle 17, Between the front fork and the seat 40;

the input shaft of the speed change gear mechanism is provided with a jaw clutch, the jaw clutch comprises a first blocking half clutch 12, a second blocking half clutch 13 and a two-way half clutch 11, the two-way half clutch 11 is connected with the input shaft through a spline or a guide key, so that the two-way half clutch 11 can axially move on the input shaft, the two-way half clutch 11 is connected with a shift through a shift bearing 15, the top of the shift is fixed at the middle part of a square cross rod 23, two opposite sides of a rack 3 of the speed change gear mechanism are provided with square holes matched with the size of the square cross rod 23, two ends of the square cross rod 23 are respectively inserted into the square holes of the rack 3 in a sliding manner, two ends of the square cross rod 23 are sleeved with return springs 24, one end of each return spring 24 is fixed on the square cross rod 23, the other end of each return spring is fixed on the rack 3, each return spring 24 enables the square cross rod 23 to position a shift lever 14 under the state of not being subjected to external force, the two-way half clutch 11 is in a neutral position, two ends of the square cross rod 23 are respectively connected with one ends of the left steel wire rope 21 and the right steel wire rope 22, and the other ends of the left steel wire rope 21 and the right steel wire rope 22 are connected with the gear shifter 42;

the frame 3 of the speed change gear mechanism is respectively fixed with a bearing with seats at two sides of a bidirectional half clutch 11, the first-gear half clutch 12 and the second-gear half clutch 13 are respectively fixed on inner rings of the bearings with seats at two sides, the speed change gear mechanism comprises a first-gear driving gear 6, a second-gear driving gear 16, a first-gear driven gear 8 and a second-gear driven gear 18, the first-gear driving gear 6 is fixed on the first-gear half clutch 12, the second-gear driving gear 16 is fixed on the second-gear half clutch 13, the first-gear driven gear 8 and the second-gear driven gear 18 are fixed on an output shaft of the speed change gear mechanism, and the transmission ratio of the first-gear driving gear 6 and the first-gear driven gear 8 is smaller than that of the second-gear driving gear 16 and the second-gear driven gear 18;

the gear shifter 42 comprises a knob, a left fixed column 26, a right fixed column 27, a wheel-shaped blocking part 33, a pressure spring 31, a knob shifting sheet 34 and a knob cap 35, wherein the knob comprises a circular bottom plate and a rotary rod vertically arranged in the center of the circular bottom plate, the left fixed column 26 and the right fixed column 27 are respectively arranged on two opposite sides of the center of the circular bottom plate of the knob, the left fixed column 26 and the right fixed column 27 are radially arranged, the left steel wire rope 21 and the right steel wire rope 22 are respectively and fixedly connected with the left fixed column 26 and the right fixed column 27, a sleeve matched with the outer diameter of the rotary rod of the knob is arranged in the middle of the wheel-shaped blocking part 33, three grooves matched with the left fixed column 27 and the right fixed column 27 in size are respectively arranged at the positions close to the left fixed column 26 and the right fixed column 27 at the bottom of the wheel-shaped blocking part 33 as a middle blocking position 28, a blocking position 29 and a second blocking position 30, the middle clamping position 28 is arranged between the first clamping position 30 and the second clamping position 30, the wheel-shaped clamping part 33 is sleeved on the knob, the rotating rod of the knob is inserted in the sleeve, the end part of the rotating rod extends out of the top of the sleeve, the sleeve is sleeved with the pressure spring 31, one end of the pressure spring 31 is fixed with the rotating rod, the other end of the pressure spring 31 is fixed with the sleeve, and the pressure spring 31 enables the left fixing column 27 and the right fixing column 27 on the circular bottom plate to be clamped and arranged in the middle clamping position 28, the first clamping position 29 or the second clamping position 30; the end part of the rotary rod extending out of the sleeve is also fixedly provided with a knob shifting sheet 34 which is radially arranged, and the end part of the sleeve is also sleeved with a knob cap 35. When the gear shifting is needed, the rotating rod is pressed down firstly, so that the left and right fixing columns 27 are separated from the clamping positions, then the knob shifting piece 34 is rotated to drive the rotating rod to rotate, and the left and right fixing columns 27 enter the corresponding clamping positions.

The crank and rocker mechanism comprises a crank 1, a connecting rod 4 and a rocker, one end of the crank 1 is connected with a crank shaft 7, the other end of the crank 1 is connected with the middle part of the rocker through the connecting rod 4, one end of the rocker is hinged on the rack 3, a pedal rod 5 is fixed at the other end of the rocker, an auxiliary rod 19 is further fixed on the pedal rod 5 at a position symmetrical to the rocker, the auxiliary rod 19 is arranged in parallel with the rocker, and the auxiliary rod 19 is hinged on the rack 3 at a position corresponding to the hinged point of the rocker. The device can also be provided with a brake, a hand brake is arranged on the handle 41 and is connected with a disc brake clamp on the fixed rear wheel.

When the device is used, a rider treads the lever 5, the force of the rider treading the lever 5 is transmitted to the rear wheel by using the crank rocker mechanism and the change gear to realize the forward movement of the vehicle, so that the device can move only by treading up and down, one foot of the device stands on the axle 17 without the seat 40, the other foot of the device treads the pedal lever 5 for use, the seat 40 can also be installed, and the seat 40 can adopt a wider cushion because the two feet do not need to do circular motion when the seat 40 is installed, so that the seat feeling is very comfortable; the device is also provided with a speed change gear mechanism, and the speed change gear mechanism is controlled by the gear shifting device 42 on the handlebar, so that the adjustment is convenient for different road conditions, and the labor-saving effect is achieved.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a foot bar car, its characterized in that includes rear wheel, front wheel (43), axle (17), crank axle (7), crank rocker mechanism, foot bar (5) and change gear mechanism, the rear wheel passes through rear wheel axle (9) and installs in axle (17) rear end, front wheel (43) pass through the front fork and install in the front end of axle (17), and handle (41) are installed on the front fork, foot bar (5) are connected with crank axle (7) through crank rocker mechanism, crank rocker mechanism converts the up-and-down motion of foot bar (5) into the rotary motion of crank axle (7), crank axle (7) and change gear mechanism's input shaft linkage, rear wheel axle (9) and change gear mechanism's output shaft linkage, install gear changer (42) that control change gear mechanism shifted on handle (41).

2. A scooter according to claim 1, characterized in that a seat (40) is further mounted on the axle (17), and the pedal lever (5) is arranged above the axle (17) between the fork and the seat (40).

3. The treadmill of claim 1, wherein the input shaft of the change gear mechanism is provided with a dog clutch comprising a first-gear half clutch (12), a second-gear half clutch (13) and a two-way half clutch (11), the two-way half clutch (11) being connected with the input shaft by a spline or a guide key such that the two-way half clutch (11) can move axially on the input shaft;

a frame (3) of the speed change gear mechanism is respectively fixed with a bearing with a seat at two sides of a bidirectional half clutch (11), the first gear half clutch (12) and the second gear half clutch (13) are respectively fixed on the inner rings of the bearings with the base at the two sides, the speed change gear mechanism comprises a first gear driving gear (6), a second gear driving gear (16), a first gear driven gear (8) and a second gear driven gear (18), the first gear driving gear (6) is fixed on the first gear half clutch (12), the second gear driving gear (16) is fixed on the second gear half clutch (13), the first-gear driven gear (8) and the second-gear driven gear (18) are fixed on an output shaft of the speed change gear mechanism, and the transmission ratio of the first-gear driving gear (6) to the first-gear driven gear (8) is smaller than that of the second-gear driving gear (16) to the second-gear driven gear (18).

4. The treadmill of claim 3, wherein the bidirectional half clutch (11) is connected to a shift lever through a shift bearing (15), the top of the shift lever is fixed to the middle of a square cross bar (23), two opposite sides of the frame (3) of the transmission gear mechanism are provided with square holes matching with the square cross bar (23) in size, two ends of the square cross bar (23) are respectively inserted into the square holes of the frame (3) in a sliding manner, two ends of the square cross bar (23) are sleeved with return springs (24), one end of each return spring (24) is fixed to the square cross bar (23), the other end of each return spring is fixed to the frame (3), the return springs (24) enable the square cross bar (23) to position the shift lever (14) in a state of not being subjected to external force, so that the bidirectional half clutch (11) is in a neutral position, two ends of the square cross bar (23) are respectively connected to one end of the left steel wire rope (21) and one end of the right steel wire rope (22), the other ends of the left steel wire rope (21) and the right steel wire rope (22) are connected with a gear shifting device (42).

5. The treadmill according to claim 4, wherein the gear shifter (42) comprises a knob, a left fixed column (26), a right fixed column (27), a wheel-shaped blocking member (33), a pressure spring (31), a knob pick (34) and a knob cap (35), the knob comprises a circular base plate and a rotary rod vertically arranged at the center of the circular base plate, the left fixed column (26) and the right fixed column (27) are respectively arranged on two opposite sides of the center of the circular base plate of the knob, the left fixed column (26) and the right fixed column (27) are arranged along a radial direction, the left steel wire rope (21) and the right steel wire rope (22) are respectively and fixedly connected with the left fixed column (26) and the right fixed column (27), a sleeve matched with the outer diameter of the rotary rod of the knob is arranged in the middle of the wheel-shaped blocking member (33), the bottom of the wheel-shaped blocking member (33), Three grooves which are matched with the left and right fixed columns in size are respectively arranged at positions close to the left fixed column (26) and the right fixed column (27) and are used as a middle clamping position (28), a first clamping position (29) and a second clamping position (30), the middle clamping position (28) is arranged between the first clamping position and the second clamping position (30), a wheel-shaped clamping member (33) is sleeved on the knob, a rotary rod of the knob is inserted in the sleeve, the end part of the rotary rod extends out of the top of the sleeve, a pressure spring (31) is sleeved on the sleeve, one end of the pressure spring (31) is fixed with the rotary rod, the other end of the pressure spring is fixed with the sleeve, and the pressure spring (31) enables the left and right fixed columns (27) on the circular bottom plate to be clamped in the middle clamping position (28), the first clamping position (29) or the second clamping position (30); and a knob shifting sheet (34) which is radially arranged is also fixed on the end part of the rotary rod extending out of the sleeve.

6. A pedal lever vehicle according to any one of claims 1 to 5, wherein the crank-rocker mechanism comprises a crank (1), a connecting rod (4) and a rocker (2), one end of the crank (1) is connected with a crank shaft (7), the other end of the crank (1) is connected with the middle part of the rocker (2) through the connecting rod (4), one end of the rocker (2) is hinged on the frame (3), the other end is fixed with a pedal lever (5), an auxiliary lever (19) is further fixed on the pedal lever (5) at a position symmetrical to the rocker (2), the auxiliary lever (19) is arranged in parallel with the rocker (2), and the other end of the auxiliary lever (19) is hinged on the frame (3) corresponding to the hinged point of the rocker (2).

7. Treadmill according to claim 1, characterised in that the rear wheel or/and the front wheel (43) is also provided with brakes.